<template>
  <el-card class="main-card">
    <!-- 标题 -->
    <div class="title">{{ this.$route.name }}</div>
    <div class="operation-container">
      <el-button
        type="primary"
        size="small"
        icon="el-icon-plus"
        @click="openModel(null)"
      >
        新建相册
      </el-button>
      <div style="margin-left: auto">
        <el-button
          type="text"
          size="small"
          icon="el-icon-delete"
          style="margin-right: 1rem"
          @click="checkDelete"
        >
          回收站
        </el-button>
        <el-input
          v-model="keywords"
          prefix-icon="el-icon-search"
          size="small"
          placeholder="请输入相册名"
          style="width: 200px"
          @keyup.enter.native="searchAlbums"
        />
        <el-button
          type="primary"
          size="small"
          icon="el-icon-search"
          style="margin-left: 1rem"
          @click="searchAlbums"
        >
          搜索
        </el-button>
      </div>
    </div>
    <!-- 相册列表 -->
    <el-row class="album-container" :gutter="12" v-loading="loading">
      <!-- 空状态 -->
      <el-empty v-if="albumList == null" description="暂无相册" />
      <el-col v-for="album of albumList" :key="album.id" :md="6">
        <div class="album-item" @click="checkPhoto(album)">
          <!-- 相册操作 -->
          <div class="album-opreation">
            <el-dropdown @command="handleCommand">
              <i class="el-icon-more" style="color: #fff" />
              <el-dropdown-menu slot="dropdown">
                <el-dropdown-item :command="'update' + JSON.stringify(album)">
                  <i class="el-icon-edit" />编辑
                </el-dropdown-item>
                <el-dropdown-item :command="'delete' + album.id">
                  <i class="el-icon-delete" />删除
                </el-dropdown-item>
              </el-dropdown-menu>
            </el-dropdown>
          </div>
          <div class="album-photo-count">
            <div>{{ album.photoCount }}</div>
            <i v-if="album.status == 2" class="iconfont el-icon-mymima" />
          </div>
          <el-image fit="cover" class="album-cover" :src="album.cover" />
          <div class="album-name">{{ album.name }}</div>
        </div>
      </el-col>
    </el-row>
    <!-- 分页 -->
    <el-pagination
      :hide-on-single-page="true"
      class="pagination-container"
      @size-change="sizeChange"
      @current-change="currentChange"
      :current-page="current"
      :page-size="size"
      :total="count"
      layout="prev, pager, next"
    />
    <!-- 新增模态框 -->
    <el-dialog :visible.sync="addOrEdit" width="35%" top="10vh">
      <div class="dialog-title-container" slot="title" ref="albumTitle" />
      <el-form label-width="80px" size="medium" :model="albumForum">
        <el-form-item label="相册名称">
          <el-input style="width: 220px" v-model="albumForum.name" />
        </el-form-item>
        <el-form-item label="相册描述">
          <el-input style="width: 220px" v-model="albumForum.description" />
        </el-form-item>
        <el-form-item label="相册封面">
          <el-upload
            class="upload-cover"
            drag
            :show-file-list="false"
            :before-upload="beforeUpload"
            action="/api/admin/album/photo"
            multiple
            :on-success="uploadCover"
          >
            <i class="el-icon-upload" v-if="albumForum.cover == ''" />
            <div class="el-upload__text" v-if="albumForum.cover == ''">
              将文件拖到此处，或<em>点击上传</em>
            </div>
            <img v-else :src="albumForum.cover" width="360px" height="180px" />
          </el-upload>
        </el-form-item>
        <el-form-item label="发布形式">
          <el-radio-group v-model="albumForum.status">
            <el-radio :label="1">公开</el-radio>
            <el-radio :label="2">私密</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form>
      <div slot="footer">
        <el-button @click="addOrEdit = false">取 消</el-button>
        <el-button type="primary" @click="addOrEditAlbum"> 确 定 </el-button>
      </div>
    </el-dialog>
    <!-- 删除对话框 -->
    <el-dialog :visible.sync="isdelete" width="30%">
      <div class="dialog-title-container" slot="title">
        <i class="el-icon-warning" style="color: #ff9900" />提示
      </div>
      <div style="font-size: 1rem">是否删除该相册？</div>
      <div slot="footer">
        <el-button @click="isdelete = false">取 消</el-button>
        <el-button type="primary" @click="deleteAlbum"> 确 定 </el-button>
      </div>
    </el-dialog>
  </el-card>
</template>
  
  <script>
import * as imageConversion from "image-conversion";
import albumApi from "@/api/album";
export default {
  created() {
    this.listAlbums();
  },
  data: function () {
    return {
      loading: true,
      isdelete: false,
      addOrEdit: false,
      albumForum: {
        id: null,
        name: "",
        description: "",
        cover: "",
        status: 1,
      },
      albumList: [],
      //  分页查询
      current: 1,
      size: 10,
      keywords: "",
      count: 0,
    };
  },
  methods: {
    openModel(item) {
      if (item) {
        this.albumForum = JSON.parse(item);
        this.$refs.albumTitle.innerHTML = "修改相册";
      } else {
        this.albumForum = {
          id: null,
          name: "",
          // albumLabel: "",
          cover: "",
          status: 1,
        };
        this.$refs.albumTitle.innerHTML = "新建相册";
      }
      this.addOrEdit = true;
    },
    checkPhoto(item) {
      this.$router.push({ path: "albums/" + item.id });
    },
    checkDelete() {
      this.$router.push({ path: "photos/delete" });
    },
    // 获取列表
    listAlbums() {
      albumApi.list(this.current,this.size,this.keywords).then((data) => {
        this.albumList = data.data.recordList;
        this.count = data.data.count;
        this.loading = false;
      });
    },
    // 添加或编辑
    addOrEditAlbum() {
      if (this.albumForum.name.trim() == "") {
        this.$message.error("相册名称不能为空");
        return false;
      }
      if (this.albumForum.description.trim() == "") {
        this.$message.error("相册描述不能为空");
        return false;
      }
      if (this.albumForum.cover == null) {
        this.$message.error("相册封面不能为空");
        return false;
      }
      albumApi.saveOrUpdate(this.albumForum).then((data) => {
        if (data.flag) {
          this.$notify.success({
            title: "成功",
            message: data.message,
          });
          this.listAlbums();
        } else {
          this.$notify.error({
            title: "失败",
            message: data.message,
          });
        }
      });
      this.addOrEdit = false;
    },
    uploadCover(response) {
      this.albumForum.cover = response.data;
    },
    beforeUpload(file) {
      return new Promise((resolve) => {
        if (file.size / 1024 < this.config.UPLOAD_SIZE) {
          resolve(file);
        }
        // 压缩到200KB,这里的200就是要压缩的大小,可自定义
        imageConversion
          .compressAccurately(file, this.config.UPLOAD_SIZE)
          .then((res) => {
            resolve(res);
          });
      });
    },
    handleCommand(command) {
      const type = command.substring(0, 6);
      const data = command.substring(6);
      if (type == "delete") {
        this.albumForum.id = data;
        this.isdelete = true;
      } else {
        this.openModel(data);
      }
    },
    // 删除
    deleteAlbum() {
      albumApi.delete(this.albumForum.id).then((data) => {
        if (data.flag) {
          this.$notify.success({
            title: "成功",
            message: data.message,
          });
          this.listAlbums();
        } else {
          this.$notify.error({
            title: "失败",
            message: data.message,
          });
        }
        this.isdelete = false;
      });
    },
    searchAlbums() {
      this.current = 1;
      this.listAlbums();
    },
    sizeChange(size) {
      this.size = size;
      this.listAlbums();
    },
    currentChange(current) {
      this.current = current;
      this.listAlbums();
    },
  },
};
</script>
  
  <style scoped>
.album-cover {
  position: relative;
  border-radius: 4px;
  width: 100%;
  height: 170px;
}
.album-cover::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
}
.album-photo-count {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1.5rem;
  z-index: 1000;
  position: absolute;
  left: 0;
  right: 0;
  padding: 0 0.5rem;
  bottom: 2.6rem;
  color: #fff;
}
.album-name {
  text-align: center;
  margin-top: 0.5rem;
}
.album-item {
  position: relative;
  cursor: pointer;
  margin-bottom: 1rem;
}
.album-opreation {
  position: absolute;
  z-index: 1000;
  top: 0.5rem;
  right: 0.8rem;
}
</style>
  